Nintendo showed off some Animal Crossing 3DS during their Nintendo Direct presenation and it's the same old Animal Crossing as you know it, with some small changes. Namely, new characters will arrive in your town via StreetPass. So much better than trading memory cards, right? Oh, and there's going to be a ton of items now.
That's all we got from the livestream, but we'll update with more info as soon as Nintendo releases anything.